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Photovoltaic cable with high factor value and production process thereof

A technology for photovoltaic cables and production processes, applied in the manufacture of insulated cables, cables/conductors, insulating conductors/cables, etc., can solve problems such as reducing sealing and waterproofing, cracking, degumming, etc., to enhance adhesion, increase Long service life, the effect of large surface tension

Pending Publication Date: 2022-08-09
SUZHOU BAOXING WIRE & CABLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing photovoltaic cables often have risks of degumming and cracking in the later stage due to weak bonding in the process of bonding with the connector through glue, thus reducing the sealing and waterproofing

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A photovoltaic cable with a high factor value, comprising a conductor, an insulation covering the outside of the conductor and a sheath covering the outside of the insulation, wherein the conductor is a stranded tinned copper conductor, and the conductor structure: 56 / 0.285 (number of pieces) / mm), the sheath is made of modified irradiation cross-linked low-smoke polyolefin material containing ultra-high molecular weight lubricant. The surface of the cable after extruding the sheath presents a uniform roughness. The cable is irradiated by an electron accelerator to increase its dyne value to ≥36.

[0021] The average number average molecular weight of the lubricant is 4000-300000.

[0022] A production process for a photovoltaic cable with a high factor value comprises the following steps: drawing → wire harness → extruding insulation → extruding sheath → irradiation.

[0023] Wire drawing: The tinned copper rod is drawn by a wire drawing technique known to those skill...

Embodiment 2

[0030] A photovoltaic cable with a high factor value, comprising a conductor, an insulation covering the outside of the conductor and a sheath covering the outside of the insulation, wherein the conductor is a stranded tinned copper conductor, and the conductor structure: 56 / 0.285 (number of pieces) / mm), the sheath is made of modified irradiation cross-linked low-smoke polyolefin material containing ultra-high molecular weight lubricant. The surface of the cable after extruding the sheath presents a uniform roughness. The cable is irradiated by an electron accelerator to increase its dyne value to ≥36.

[0031] A production process for a photovoltaic cable with a high factor value comprises the following steps: drawing → wire harness → extruding insulation → extruding sheath → irradiation.

[0032] Extrusion insulation: The extrusion method of insulation is extrusion type, and the extrusion temperature of the host is: 145±5°C in the first zone, 155±5°C in the second zone, 156...

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Abstract

The invention discloses a photovoltaic cable with a high dyne value and a production process thereof, the photovoltaic cable comprises a conductor, an insulator wrapping the conductor and a sheath wrapping the insulator, and the sheath is made of an improved irradiation crosslinking low-smoke polyolefin material containing a lubricant with ultra-high molecular weight. The surface of the cable subjected to sheath extrusion shows uniform roughness, and the dyne value of the cable subjected to sheath extrusion after irradiation is greater than or equal to 36. According to the photovoltaic cable and the production process thereof provided by the invention, the sheath adopts the improved irradiation cross-linked polyolefin, so that the surface of the product has the characteristics of uniform roughness, good surface tension performance and the like, and the product has good adhesiveness with glue during subsequent production, so that the adhesiveness between the cable and a connector is stronger, and the service life of the cable is prolonged. The service life of the assembly is prolonged, so that the market competitiveness of the assembly is improved; the manufacturing cost is low, and the production process is more environment-friendly.

Description

technical field [0001] The invention belongs to the technical field of photovoltaic cables, and in particular relates to a photovoltaic cable with a high factor value and a production process thereof. Background technique [0002] Photovoltaic modules are generally used in rain, sunlight, high and low temperature, etc., which impose strict requirements on the sealing and waterproofing of cables and connectors of special modules connected in series with photovoltaic units. However, in the process of bonding the existing photovoltaic cables with the connectors by glue, the bonding is not strong, which leads to the risk of degumming and cracking in the later stage, thereby reducing the sealing and waterproofing. After a lot of tests, it was found that the greater the surface tension of the cable, the stronger the adhesion between the cable surface and the sealant in the later stage, that is, the requirement for a high "dyne value" of the surface. Therefore, it is necessary to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/17H01B7/02H01B13/00H01B13/14H01B13/24
CPCH01B7/17H01B7/0275H01B13/00H01B13/003H01B13/14H01B13/24Y02A30/14
Inventor 林恒彬季金莲
Owner SUZHOU BAOXING WIRE & CABLE
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